How to make a simple but effective vacuum chamber with a fridge compressor and a steel pot. Very inexpensive if you can find these few components used!
A vacuum chamber is needed for some other projects that I'll do in the future like degassing resin, plaster, silicon and wax or stabilizing wood! Be sure to subscribe if you are new to the channel and turn notifications on so you won't miss upcoming video.
Index of operation and materials:
0:03 fridge compressor
0:19 Steel pot 27cm diameter, nice thick walls
0:21 Specific high strenght polycarbonate 10mm (better use thicker like 20mm for regular polycarbonate or plexiglass)
0:32 Gas rated tubing with thick walls secured with steel hose clamp
1:10 Finding, center punching and drilling hole
1:31 Threading for 1/4 inch pipe thread connector
2:00 Various 1/2 inch pipe connection. Doesn't matter size get cheapest, I'm pretty sure any measure would work just fine
2:02 Vacuum gauge bought on amazon:
https://amzn.to/2Olh55T (affiliate link) with 1/4inch female to 1/2inch male adaptor
2:10 Assemble everything with teflon tape and "Hand Tool Rescue" wrench
4:09 Connect other end of the compressor pump to the valve assembly again with steel hose clamp
4:12 Sealing the edge of the pot with car door rubber trim (used to prevent damage to edge of car's doors)
5:00 leak between seal parts filled with silicone
5:50 rewiring pump power cable and adding a power switch to one of the live wire to make it easier turning on and off the pump
8:05 Thick MDF board used as base
8:42 Rubber feet added to the bottom side of the base
With my particular compressor I'm able to pull -27.5 inHg.
The ball valve between the chamber and the compressor was not needed at the end, the compressor must have some kind of one way valve so even when it's turned off it does not let air in.
Thanks a lot for watching, I hope you liked the video!
Suggestions and comments are welcome.
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